Machine for coating can-covers.



um E L F h E L 0 MACHINE FOR COATING CAN COVERS.

APPLICATION FILED SEPT. 19, 1907.

5] W01 wife; wk

PATENTED APR. 21-, 1908.

G LEFFLER. MACHINE FOR OOAT INGTGAN COVERS.

APPLICATION FILED SEPT. 19,1907.

3 SHEETS-SHEBT 2.

No-. sa5,625. 1 PATENTBD APR. 21, 1908. 0. LEFFLER.

MACHINE FOB. COATING CAN COVERS.

APPLIATmN FILED SEPT.19,1907.

3 SHEETS-SHEET 3 ere.- ese;ess.

estate erases Maser crises oneetss VIJ-EFFEER, 'OFNEW YORK, N; Y., seamen TO'HENRY J. WHITE, or WESTFIELD, r JERSEY.

s ecialisms a ss recent.

son coa'r ne, cnn covnnsi Batonted AprilQl, isoe.

- 'Application file d S tembe -saucer, serial No. season 4T0 all whointinny-concern; I

Be it known that l, GHriRLEhELEFFLEBi/fi citizen I of the United -States, residinfilat New 1 York city, {in the borough 'of'Bro yn and State of New.}York, have inventedlcertain "new and useful Improvements in Machines.

tor Coatili Gan-Covers, ofiwliichthe idllowin has e to ,;olear and;exact description;

. y iinvention relates-ito machinesfor ep-j plyin a coating of cement togpiates' which may i e formed mto covers for cans h being secured to the-b'ody ofthe' can by'ben ing-the edges of the body'and cover into a suitable seem orb'ead, the cement se to render the joint thusfor med'absolutely-tight.

it relates "more articularlyto a machineof this class in whic ll the can cover is carried uplonthe upper surface of a rota supporhofl -w men-member which-mav he -rotated bya step the coating operation.

Myinventlon'hes for its object the grove sion of improved means for holding encement and for causing the proper-flow of. the a same at the ;proper times.:and checking. or

-;cutting oil the said Eflow at othertimes, as,

ffor instance, when the coated cover is'being step icy-step movement to themeni er whlch movedaway and-afresh cover beingihroug'ht into proper position toireceive its coating.

My invention also comprises improved means for causing the rotation of the rotary cover support, improved means for removthe coated cover from said-s11 ort and ot er improved details, which wil ef'hereai ter ointed ontiandclaimed." p

Re erence is :hereby made to the accompanying drawing wherein the same numer- "alscf vreference are used to designate :corre- -spondin g parts-in the several viewsyof which Figure lie-a planof'a machineconstructecl in accordance with my invention; Figi 2 is aside-elevation. Fig I Fig. xtis asection on hne 4- -4 ofFig. 1. .Fig.

a detail of :the mechanism for im artlng a .earriestherotar supports. .7 is a sectional detaihof the rpresserifoot i thesenter of the upper surface of thecan cover when the coating is being, applied and 10h a-number :mayhecarrie by acorn-- 3 is an end elevation.

' Figf8 is as'ectional detail of the valve for per end a;member3 in the'formofa circular ,plate with verticalfbearings 4 -for supporting a series of-spindles'5. .Each of these spindles carries at its upper end a circularglate Gupon which a can cover a beup'lace in order to recei've an annular coatingof cement}, see Fig. "1. The lower end ofeach "of these spindles 5, is provided with a frictionalchitch member 9, adapted' to bejdriven when'the anisxn which will belater, described The lower: end of the vertical shaft 2, is

sleeve1'3, carried hy'a vertical shaft 14, and the said starwheel forms one member of the spin esu porting p1ate'3. The rotating "in 1'5 which gooperates with the star wheelQlZ is carried upon the end of an arm or. crank 16 applied to the shaft l'7the latterbeing journa e The hub of the crank 16 carries a-cam I9 lever memherl20 which oscillates upon the pin or stud21 in order to lock the star wheel in itsvarious positions of repose- A washer 22 may be interposed between the cam "19 and bearing18. The shaft '17 carries 'at its lower end a bevel gear 23 which meshes with a similar A gear 24, fixed to the horizontal bearings'26 carried by the base '1, 'a'n'dlis' rovided with. fixed and loose pulleys 27 an '28 .for receiving driving belt in the'usual'mam nor, the belt shifter 29 being carried bythe base 1. The upper: end of the shaft17 isQp'I'ovided with a large spur gear 3'0,which' meshes with the pinion 31 integral with afrition clutch member 32 and fixedto theup er end gporting table or basell to which the variousis' a vertical shaft "2.; -w I ich carries at its Ln'p-.

fdriveshaft'25, which is journaled in suitablecan cover is receiving its coating,by mechin a bea'ring118 formed in the base 1L affixed thereto and adapted to operate "the provided with a spur gear 10 which meshes i with a similar gear'll fixed upon the hub ofv the star wheel 12 which-is ournaIed on a; v

wellknown'Geneva stop mo vcmentfhy which taste 'by-step movement 1s miparted'to the of the shaft 14". The shaft 14 is ca a le of a vertical or lon 'tudinal movement 'eing'n'ormally held in 't e positioniof FigA bv-a spiral spring 33 applied to the lower end thereof between the washer or head 34 and the washer 35. the shaft 14 is brought about atthe desired times by a lever 36, which is pivoted atone end. and carries at its free end a pin 37 and roller 38 which bears upon the surface of a cam 39 fixed to the driving shaft 25.

The mechanism for containing and applying the cement, comprises a reservoir 40, hav ing an air-tight cover 41, removably secured thereto by bolts 42 and wing nuts 43, said reservoir being preferably connected with means for applylng air ressure to the surface of the cement wit 'n the reservoir to facilitate the flow thereof, and having a draw-0d cock 44. The-cement is preferably agitated continuously by a rotary beater 45 carried by a vertical shaft 46 which is journaled at its lower end in the bottom of the reservoir 4, and at its upper end in the bearing 47 carried by the base 1. The upwardly projecting end of the beater shaft 46, is prov ded with a pulley 48, driven by the belt 49' passing over a drive pulley 50 carried by a vertical shaft 51, journaled in the bearings 52 and 53, carried by the base 1. The lower end of the shaft 51 carries-a bevel ear 54 which meshes with a similar gear 55 ixed to the main shaft 25.v

,A sup ly pipe 56 is bolted to the lower portion of t e reservoir 40 and is provided with a cock 57, which may be used to regulate or cut off the flow of cement. The lower end of the su 1y pipe 56 is closed by a screw plug 58 and 1s rovided with a valve mechanism shown in h ig. 8. The valve shown comprises a conical member 59 formed on the end of the pin 60 which is surrounded by a spiral spring 61, one end of which bears against the base of the cone 59 and presses it against a valve seat 62 formed at the end of the sleeve 63. A small pin 64 is integral with the pin 60 and cone 59 and extends through a bore 65 of the sleeve 63, the diameter of which is somewhat greater than that of the said pin 64 so as, to permit the flow of the cement when the valve 59 is raised. The upper end of the spring 61 bears against a shoulder 66 formed within the screw plug 67 which is bored as shown at 68 to form a guide for the in 60. The plug 67 is threaded within the oss 69 of -the supply pipe 56, the lower end being preferably cone shaped as shown so as to fit against the conical surface 70 of the bore of the ipe 56. A look nut 71 may be used for loc ring the plug 67 firmly in position.

Extending laterally from the free end of the supply pipe 56 and preferably integral therewith, is an arm 72 provided with a curved slot 73 within which is clamped a The longitudinal movement of.

' suitable portion of the base 1.

esaess as shown in Fig. 7, and separated from the arm 72 by a washer 78.

The presser foot 79 is carried at the lower end of the vertical pin 80 which slides longitudinally within the bore of the sleeve 7 A. and is normally held in a depressed position by a spiral spring 81 which bears at one en d again st a collar 82 which abuts against a shoulder on the pin 80. The other end of the spring 81 bears against the bottom of the socket or cavity 83 within the nut 77, the upper end of the pin 80 passes through the nut 77 and re ceives a pair of nuts 84 and 85 by which the normal position of the presser foot 79 may be adjusted The bottom of the reservoir 40 is provided with a bearing 86 which rests upon the vertically adjustable pivot pin 87, so that the reservoir may be readily detached from its support and may have an angular adjust ment to vary the position of the supply pipe for covers of different sizes being clamped in any position of adjustment by an upward movement of the pin 87. 'lheburved slot 73 of the arm 72 is concentric with the pivot pin 87 so that the ,presser foot may be 1O;1(lll adjusted to bring it exactly in line with the axis of the spindle 5 which is driven by the shaft 14 when the coating is being applied to the can cover.

The mechanism for removing the can cover from one of the supporting plates 6 comprises a pair of osci latory arms 88 and 89. The arm 89 is integral with a vertical sleeve 90 which is fixed to the upper end of a vertical rock shaft 91, the latter being journaled in a sleeve or bearing 92 integral with the plate 93 which is bolted to one end of the ody 1 by bolts 94. The lower end of the rock shaft 91 is provided with. a sleeve 95 fixed thereto and having a laterally extending arm 96 which carries a roller 97 held against the edge of a cam 98 by means of a tension spring 99 secured at one end to the arm 100 extending rearwardly from the sleeve 95 and secured at the other end to any The cam 98 is fixed to the main shaft 25 and serves to impart an oscillatory movement to the rock shaft 91. This shaft is also capable of longitudinal movement which is brought about by a lever 101 which is pivoted on a stud 102, carried at the lower end of a bracket 103 which is secured to, and attends downward from, the table 1. One end of the said lever 101 carries a pin 104 in alinement with the axis of the rock shaft 91 and the other end of the lever is provided with a roller 105 which is held against the edge of a cam 106 by the action of a compression spring 107 placed between the sleeve 95 and the lower end of the bearing 92. The oscillatory arm 88 is integral with a vertical sleeve 108 fixed to the upper end of arock shaft 109 and said rock shaft is journaled within albearing 110 inron upon the can cover a, which is p ,elt'ion shown in Fig-it The valv'e'59 is there-- sas es tegral with the plate 93. i The lower end of therook shaft 110 has affixed thereto a sleeve :1'1-1 whichhas atits lower end a laterally ex' tending arm E112 which is provided with. a a, roller 113, which is held against'theedge of a eam 114. by a tension spring 115 secured at we endto an arm 116 which is inte a1 with the sleeve 111, the opposite end of t e spring 11 5 being suitably secured to the base 1 The an cam 1 1'4is secured upon theendof-the main shaftZS I The operation of the machine is briefly as followsz--The mechanism being set: in m'oticn by the driving belt which passes over the at fined pulley of the shaft 25, an intermittent or step-.bystep movement is imparted to the mcircular plate 3 through the Geneva stop movement which has been described, the, EplateB 'venaquarter turn on each he movement' an then locked in-such a position that one of the spindles 5 which carries 1 the platefiis immediately above and in line with .the shaft 14. The latter shaft is con- 'tinuously rotatedbymeans' of the shaft 17 ht and gears 30 and 31 but the'clutch member T32 is normally separated from the clutch 'ahenibor' 9. as, shown in Fig. 4. As soon as the plate} is locked in position the mechanism isready' to perform the coating operaaced on the plate 6 before it reaches theposionabove the shaft 14. The coatin eraiiiglil is'initiated by the movement of t e ever fl svhich cooperates with the cam 39 and elees vatesthe shaft 1480 as to bring the friction member 32 into engagement wlth the cob crating rndmber 9 and thereby rotate t e s "indie 5. The raising oi the shaft 141 also 'eEvat/esthe s indle a slight distance and sincethepin omiorre 'ulatin the flow o cement is immediately a ove t e cover"a,-it will be ressed :upwatdthereby and will open the vs. vs and ii. ""The upward movement of the s indle 5v and late fi also causes the centerof t e cover 50 ajt'ol. ear against the presser foot 79 and comgessthe sp 81 whereby the cover I), is i flctionall held against, the plate 6 so as to be rotate. thereby. The gears and 31 are proifplrably proportionedso that the spindle w during the time the valve ,59 is open so as to fpreduce a'uniform coating. As soon as the coating has been ap lied the cam 39 permits the lever ands aft 14, spindle and plateifi to descendi'nto the poby relieved from up ard'pressure and the a ring oltherenpon forces thevalves a'inst i 'f seatfepd stops the flow of cements hen this stage of the operation has been reached which is ap lied to the valve jperiiritv the cement to flow down upon the up erisurface of the cover, and as the latter be given several complete revolutions .movement of said. rotary support. 3. In a machine of the class described, the

the star wheel 12 of the Geneva movement is unlocked and rotated another step whereby the spindle 5 and support 6 and cover LL}, are carried around to the mechanism for removing the said cover from the su porting plate 6.- This operation is eiiected liy the oscillatory arms 88, 89. The latter at the time the coated cover a reaches the position shown in Fig. 1 is in its depressed position so that its curvedportion isin the same plane as the supportm disk 6 and hence is below the cover .a. tis howeverout of the path of the plate 6, as'indicated by the dotted lines in ig. 1., so that it does not interfere with the movement of the said plate 6. As soon, how-v ever, as the latter'comes to rest,'the arm 89 moves horizontally so that its curved edge embraces the plate 6 and is immediately be low the cover a. The'arm 89 is then. given a vertical movementby the cam106 so that it picks u the cover a and the cam 98 then causes t e arm 89 to travel'horizontally in a rearward direction carrying with it the cover 0.. About the time it reaches its extreme rcarward'position the earn 114 moves the arm 88 horizontallyin arearward direction so that its curved portion strikes the edge of .the

[cover a and throws it off .from its supporting arm 89 so that it falls into a suitable receptacle or upon a suitable conveyor not shown. The circular plate 3 is then given another step movement by the Geneva stop mechanism so as to bring a fresh cover a into osition to be acted upon by the arms 88 an 89 and the latter are then restored by the cam movement to'the positions of Fig. 1 in order to remove the said cover in the same manner as has been just described. The mechanism, therefore, operates in a continuous manner, the can covers being'supplicd to the rotary supports 6 in succession on one sidefof the machine and removed therefrom 1n a'coated cnditin bY-the arms 88 and $9. n the other. side of the machine. A

What I claim, is

combination of a rotary su 'port movable in the dnf ction of its axis, ,an a valved supply pipe adapted to deliver material toan object carriedlby said support, said valve being operatedr; y the axialmovernen-t of said rotary supportq fas I filo 1-. In a machme'of, the cla'ssdescnbedpthe ,2. lna"n1achiiie of theclassdescribed, the combination of a rotary supp'ort'movable in the direction of its axis, a supply pipe ada ted tode'liver material to an object carrie by said support, and a normally closed s ring pressed valve fon greventing the flow 0 ma;

terial, said valve eing opened by the axial combination of a vertically movable rotary support, a supply pipe having a downwardly directed opening, a 9 ring ressed valve with said opening and having an extension which extends through'the said opening to a point below the same.

4-. In a machine of the class described, a rotary support, vertically movable driving means for said support, a valved su )ply pipe adapted to deliver material to an object carried by said support, said valve being operated by a vertical movement of said driving i'neans.

51 In a machine of the class described, a rotary support, vertically movable driving means for said support, a supply ipe, a normally'closed spring actuated va ve for preventing the flow of material therefrom, said valve bein operated by a vertical movement ofsaid driving means.

6. In a machine of the class described, a support earned on the upper end of a rotary spindle, a friction disk on the lower end thereof, a vertically movable rotary friction member for driving said friction disk and means for alternately raising and lowering said driving friction member.

7. In. a machine of the class described, su 'iport carried on the upper end of a vertically movable rotary spindle, a friction disk on the lower end thereof, a vertically movable rotary friction member for driving said fiction disk and means for alternately raising and lowering said driving friction member.

8. In a machine of the class described, a rotary member carrying a plurality of rotary su orts means for imiiartin an intermit' tent movement to said rotary member, a friction disk on the lower end of each of said rotary supports, a vertically movable friction member for driving said friction disks and means for alternately raising and lower ing said driving friction member. 9. In a machine of the class described, a rotary member provided with a plurality of vertically movable supports, means for imparting an intermittent movement to said rotary member, a friction disk on the lower end of each of said rotary supports, a vertically movable rotary friction inember for driving said friction disks and means for alternately raising and lowering said driving friction member. 7 10. in a machine of the class described, the combination of a rotary support, a supply pipe adapted to deliver material to an object carried by said support, an arm rigid with said supply pipe and a spring pressed presser foot carried by said arm in alinement with the axis of said rotary sup )ort.

l l. in a machine of the cfass described, the combination of a movable support, a reservoir and supply pipe adapted to deliver material to an object carried by said support, said reservoir being capable of angular adustment and means-for clamping said reservoir in any position of adjustment.

.terial to an object carried by said a flanged sleeve within which ceases 12. In a machine of the class described, the combination of a. movable support, a. reservoir and supply pipe adapted to deliver masupport, a base, a vertically adjustable pivot pm upon which the reservoir is mounted and clamping means for holding said reservoir in any posi-- tion of angular adjustment.

13. In a machine of the class described, the combination of a movable support, a. reservoir and supply pipe adapted to deliver material to an object carried by said support, a. base upon which the reservoir is pivotally mounted, an arm rigid with said reservoir, and a presser foot carried by said arm and adjustable ima. direction concentric with the axis of the reservoir.

14. In a. machine of the class d(- scribed, a presser foot comprising a spring pressed pin, said pin is mounted and a. nut threaded on said sleeve and a support clamped between said flange and nut.

15. In a machine of the class described, the combination of a flanged sleeve, a. pin movable within said sleeve, a. support through which said sleeve passes, a. hollow clamping nut threaded on the end of said sleeve and a spring" a r 'angcd within the clamping nut for actuating the movable pin.

16. In a machine of the class described,

the combination of a sleeve, a hollow nut tl'ireaded on one end thereof, a pin extending through said sleeve and nut, a spring within said nut for actuating said pin and an adjusting nut applied to the end of said pin outside of the hollow nut. l7. lna machine ofthe classdcscribe'd, the combination of a rotary member carrying a rotary support, means for imparting an intermittent movement to said rotary member, means for simultaneously elevating and rotating said rotary support and a presser foot adapted to frictionally engage an object carried on the upper surface of said rotary support wl'ien the latter is elevated.

18. in a. machine of the class described, the combination of a. rotary member carrying an cle atcd object-support (5, means for imparting an intermittent movement to said rotary member, an arm 89, and means for causing said arm to approach said object-sup )ort be-- low the top thereof, so as to pass bellow the object carried by said support, and then rise so as to lift said object from said support, substantially as described.

19. in a. machine of the class described, the combination of a rotary member carrying an elevated object-s11 pport 6, means for im iart ing an intermittent movement to said ro-- tary member, an arm 89, means for causing said arm toapproach said support below the top thereof, so as to pass below the object carried thereby, and then rise to lift said object from said support, an arm 88, and means for causing the same to move so as to strike 5 said drive member, andmeans for alternately the object carried by said arm 89, substan raisingand lowering said rotary member. 10 tially as described. In Witness whereof, I subscribe my signa- 20. In a machine of the class described, a ture, in the presence of two witnesses.

5 sn port carried onthe upper end of a vertil v CHAS. LEFFLER.

I ca 1y movable rotary spmdle, a drive .Inem- Witnesses: I

' her on the lower end thereof, a vertically U LEO J. LEFFLER,

. movable rotary member adapted to engage WALDO M. CHAPIN. 

